Henry c



' (No Modl.)

H. C. GOULDING.

STEAM BOILER.

Patented sept. 14, 188e.

OOOOO OOOOOOOOOOOO l 7 fw l -WZIMJMJ UNITED STATES PATENT OFFICE.

HENRY O. GOULDING, OF NEW' YORK, N. Y., ASSIGNOR TO MILTON XV.

AHAZEL'ION, OF- SAME PLAGE.

SPECIFICATION forming part of Letters Patent No. 349,039, datedSeptember 14, 1885.

Application filed April 10, 1R86.

.To all whom it may concern:

Beit known that I, HENRY O. GOULDING, a citizen ofthe United StatesofNorth America, and a resident of the city, county, and State of NewYork, have invented a new and 4useful Improvement in Steam-Boilers, ofwhich the following is' a specification.-

The object of this invention is to construct an improved boiler of theporcupine type, with jacket therewith, a boiler with central uprightcylinder provided with radial tubes, that is designed to be moreeconomical of fuel, and more durable than other boilers of this type.Ihe chief objections to boilers of this type are that the outer or freeends of the ra dial tubes are quickly injured or destroyed by thecontact withthem of the heated products of combustion,and where thecentral cylinder passes down through the grate unusual care and laborare required for proper firing all around the said cylinder.

My improvement is designed to obviate these objections.

My boiler consists of a central cylinder,su pported by three or moredivergent water-legs, and provided with radial tubes whose free ends areentered into pockets in the boilerjacket. The water legs resting on therloor extend upward and meet centrallyin the iirechamber above thegrate, and there connect with the bottom of the central cylinder-,whichthey support, so that there shall be free water communication betweenthem all, and so that the grate-surface shall be unbroken andcontinuous.

The invention embraces other novel points of construction andarrangement, all of which will be hereinafter fully set forth.

Referenceis to be had to the accompanying drawings, forming part of thisspecification, in which similar letters of reference` indicatecorresponding parts in all the figures.

Figure 1 represents a sectional elevation of my improved boiler andboiler-jacket. Fig. 2 is a plan of the same on linex x, Fig. 1. Fig. 3is a plan of the same on line y y, Fig. 1.

In the drawings, A represents the vertical central cylinder of theboiler, supported on Water-legs B B, which in this instance are 5o threein number, though four or more may be jacket.

Serial No. 198,437. (No model.)

found advantageous in some instances. The water-legs B, closed at thebottom, as shown at a, rest on the i'loor, as shown in Fig. 1,a ndextend straight upward outside ofthe boilerjacket C, and in contacttherewith some distance above the level of the grate D, and then areinclined inward at angles of about forty` five degrees 4through saidjacket to meet at a central point in the combustionchamber, where theyare connected, as shown,with and open into the bottom ofthe cylinderA,whieh extends upward in the vertical axis of the said The verticalportions of these waterlegs being outside of the combustion-chamber arenot exposed to the heat of the furnace,and consequently serveeffectively as mud-drums for the deposit of sediment from the water, andthey are provided with theA usual blowoli' cocks, b, and man-holes c, asshown in Fig. l. y

' In order to insure amore perfect circulation of water in the lowerpart ol' the boiler asmall pipe, d, with upper end flared, as shown inFig. 1, is set in the vertical axis of the cylinder A, and coupled withthis, by a three-way coupling',j", are three smaller pipes, y, each ofwhich extends down in the inclined portion of a water-leg, B, and aboutcentrally therein. rlhis pipe-tripod 1 /'g when in place, as shown inFig. l, improves the water circulation in the boiler by serving for thefree downward movement-,0f the cooler water,while the hotter water flowsupward in contact with the sides ol' the boiler-cylinder. Up nearly tothe water-line of the boiler (indicated at h) the radial tubes E aredesigned to be of equal size, and to be arranged in horizontal planesoneabove another, according to the usual method of construction ofboilers of this type.

In my improved boiler I have two or more V(in this instance four) largetubes, F, radiating `from the cylinder A at the water-line, so that theboiler water-line, being about halfway up in these tubes F, shallpresent a more extended and continuous surface for the disengagement ofsteam, while the spaces in the said tubes above the water-line permitthe easy escape of the steam, and thereby operate to prevent theexcessive priming to which boilers of this type are subject.

The tubes E above the water-line are the steam-tubes, and may bemultiplied to any desired extent required for steam-drying.

Vithin the cylinder A, near the top thereof, Iiix a circular plate, G,having a central aperture, Z, and a smaller aperture, my, at either sidethereof, and in the central aperture, Z, is secured an upright T-pipe,o, whose depending arms open directly above the apertures m, and in theapertures m are fixed pipes p, which, depending parallel with each otherbeneath the plate G, are united at their lower ends by a cross-pipe, q,from the center of which a communicating pipe, (j, extends down withinthe cylinder A, below the water-line thereof. The steam from the boilerpasses up through the aperture Z into the T-pipe o, and thence into theupper part of the cylinder A, whence it may be taken off through a pipe,H. Tater carried by the steam into the pipe o, and condensing` thereinor arrested thereby, will drip from the arms of said pipe upon the plateG or into the apertures m, and will flow back into the boiler throughpipes p q q',- hence it will be seen that the plate G and pipes o p (l qconstitute a steam-drying device.

The boiler-jacket C is preferably constructed of brick, with pockets .vl'ormed on the inside thereof for the reception of the ends of theradiating-tubes E F, as shown. The free ends of the tubes E F, beingextended into the pockets s for the distance-say of two inches, orthereabout-are thereby protected from the intense heat of thecombustion-chamber, so that they shall not thereby be injured. Thesepockets s are not designed to be made close-fitting about the tube ends,butarc to be made large enough to permit easy access to the tube endsfor examination of the same, and they may be iliade to extend quitethrough the jacket and be closed on the outside with plugs, which, whenremoved, will enable the operator 'to remove and replaeelubes.

In boilers of this type it is theusnal practice to leave quite a spacebetween the tube ends and boiler-jacket for the upward passage of theproducts of combustion, and, as the products` of combustion movingupward seek the l'rcest path, most of them pass up between the ends andjacket and out of the stack without making contact willi the boilercylinder or tubes, and hence great waste of fuel is incurred; but bythis method of constructing the boiler-jacket, so as to cover the tubeends, the free npward passage for the products of combustion iseliminated, and the llame and hot air can escape up the stack only afterhaving been in almost contimious contact with the central cylinder andits radial tubes, hence it is evident that this form of constructionassures great economy of fuel.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. A steam-boilerconstructed, substantially as hereinshown and described, with aeentral vertical cylinder provided withradial tubes supported by diverging water-legs, and having a tubulartripod arranged within the waterlegs and lower part of the saidcylinder, as set forth.

2. A steam-boiler consisting of a vert-ical central cylinder, A,supported by communieating diverging water-legs B, and provided withseries ot' radial tubes l?) F, arranged in horizontal planes, the tubesF radiating at the water-line ofthe boilerbeing of greater diameter thanany of the other tubes, substantially as and for the purposes described.

3. A steam-boiler consisting of a vertical cylinder supported bycommunicating diverging water-legs, and provided with series of radialtubes, substantially as herein shown and described, the lower ends ofthe water-legs being arranged outside ofthe boiler-jacket and adapted toserve as mud-drums, as set forth.

Lt. The combination, with the vertical central cylinder, A, providedwith radial tubes E F, andsupported by water-legs B, of asteam -dryingdevice consisting of perforated plate (l and pipes op q q', all arrangedand adapted to operate substantially as herein shown and described.

5. The combination,with a boilcreonstrueted with a vertical cylinderprovided with radiating tubes, substantially as herein shown anddescribed, of a jacket surrounding said boiler and having pockets forthe reception of the free ends of said tubes, as and for lhepnrposes setforth.

(i. The combination of a boiler constructed withavcrticalcylinderprovided with radiating tubes, and a boiler-jacketprovided with tubepockets, substantially as herein shown and described,said boiler and jacket heilig arranged relatively to each other so thatthe free ends ofthe radiating tubes shall be engaged in thejacket-pockets, as set forth.

In testimony that l claim the foregoing as my invention I have signed myname, in presence of two witnesses, lthis lst day of April, 1886.

HENRY C. (10U hDlNtl.

\Vitnesses:

.Hoon J. S'ronnn, .l Umis M. Fnncnsox.

IOO

IIO

